Check pre-commit verison updates

.github/workflows/ci.yml

@@ -265,6 +265,21 @@ jobs:
           details: Test Failed
           webhookUrl: ${{ secrets.DISCORD_WEBHOOK }}
 
+  mypy_version_check:
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Python
+      uses: actions/setup-python@v3
+      with:
+        python-version: 3.9
+
+    - name: pre-commit dependencies
+      run: |
+        pip install pyaml
+        python build_helpers/pre_commit_update.py
+
   docs_check:
     runs-on: ubuntu-20.04
     steps:
@@ -277,7 +292,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v3
       with:
-        python-version: 3.8
+        python-version: 3.9
 
     - name: Documentation build
       run: |
@@ -304,7 +319,7 @@ jobs:
 
   # Notify only once - when CI completes (and after deploy) in case it's successfull
   notify-complete:
-    needs: [ build_linux, build_macos, build_windows, docs_check ]
+    needs: [ build_linux, build_macos, build_windows, docs_check, mypy_version_check ]
     runs-on: ubuntu-20.04
     steps:
 
@@ -325,7 +340,7 @@ jobs:
           webhookUrl: ${{ secrets.DISCORD_WEBHOOK }}
 
   deploy:
-    needs: [ build_linux, build_macos, build_windows, docs_check ]
+    needs: [ build_linux, build_macos, build_windows, docs_check, mypy_version_check ]
     runs-on: ubuntu-20.04
 
     if: (github.event_name == 'push' || github.event_name == 'schedule' || github.event_name == 'release') && github.repository == 'freqtrade/freqtrade'

.pre-commit-config.yaml

@@ -11,6 +11,13 @@ repos:
     rev: "v0.942"
     hooks:
       - id: mypy
+        args: [ freqtrade ]
+        additional_dependencies:
+          - types-cachetools==5.0.1
+          - types-filelock==3.2.5
+          - types-requests==2.27.19
+          - types-tabulate==0.8.7
+          - types-python-dateutil==2.8.11
         # stages: [push]
 
   - repo: https://github.com/pycqa/isort

build_helpers/pre_commit_update.py

@@ -0,0 +1,42 @@
+# File used in CI to ensure pre-commit dependencies are kept uptodate.
+
+import sys
+from pathlib import Path
+
+import yaml
+
+
+pre_commit_file = Path('.pre-commit-config.yaml')
+require_dev = Path('requirements-dev.txt')
+
+with require_dev.open('r') as rfile:
+    requirements = rfile.readlines()
+
+# Extract types only
+type_reqs = [r.strip('\n') for r in requirements if r.startswith('types-')]
+
+with pre_commit_file.open('r') as file:
+    f = yaml.load(file, Loader=yaml.FullLoader)
+
+
+mypy_repo = [repo for repo in f['repos'] if repo['repo']
+             == 'https://github.com/pre-commit/mirrors-mypy']
+
+hooks = mypy_repo[0]['hooks'][0]['additional_dependencies']
+
+errors = []
+for hook in hooks:
+    if hook not in type_reqs:
+        errors.append(f"{hook} is missing in requirements-dev.txt.")
+
+for req in type_reqs:
+    if req not in hooks:
+        errors.append(f"{req} is missing in pre-config file.")
+
+
+if errors:
+    for e in errors:
+        print(e)
+    sys.exit(1)
+
+sys.exit(0)